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Finding the Fourth Proportional to 3,340.71, 5,011.88 and 1,000.71

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Solution

The fourth proportional to 3,340.71, 5,011.88 and 1,000.71 is: 1,501.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340.71 : 5,011.88 = 1,000.71 : x
  2. Step 2: Convert to fraction form
    3,340.71/5,011.88 = 1,000.71/x
  3. Step 3: Cross multiply
    3,340.71x = 5,011.88 × 1,000.71
  4. Step 4: Simplify right side
    3,340.71x = 5,015,457.85
  5. Step 5: Solve for x
    x = 5,015,457.85/3,340.71
  6. Step 6: Final answer
    x = 1,501.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.